Arm element for lighting fixture



FIG. 1 is a top view of the arm element for lighting fixture;

FIG. 2 is a front view of the arm element, with the back view being a mirror image of FIG. 2;

FIG. 3 is a left side view of the arm element;

FIG. 4 is a right side view of the arm element; and,

FIG. 5 is a bottom view of the arm element.

The stippling shown in the drawing is for shading purposes, and does not form a part of the claimed design. 

The ornamental design for an arm element for lighting fixture, as shown and described. 